<title>User ID.</title>

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<h1>User ID.</h1>

Various functions to change and see a User or Group ID. These are NOT 
ANSII standard functions. Do not expect them all to work on your machine....
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<h2>Man pages. </h2>

<img src=../../GRAPHICS/man.gif>
<a href=../MAN/getuid.htm>getuid</a>
<i>Get  a users real ID.</i>
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<img src=../../GRAPHICS/man.gif>
<a href=../MAN/getuid.htm>geteuid</a>
<i>Get a users effective ID.</i>
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<img src=../../GRAPHICS/man.gif>
<a href=../MAN/setuid.htm>setuid</a>
<i>Set real and effective process ID.</i>
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<img src=../../GRAPHICS/man.gif>
<a href=../MAN/seteuid.htm>seteuid</a>
<i>Set effective process ID.</i>
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<img src=../../GRAPHICS/man.gif>
<a href=http:/cgi-bin/mjl_man?setruid>setruid</a>
<i>Set real process ID.</i>
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<img src=../../GRAPHICS/man.gif>
<a href=../MAN/setgid.htm>setgid</a>
<i>Set real and effective Group ID.</i>
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<img src=../../GRAPHICS/man.gif>
<a href=../MAN/setegid.htm>setegid</a>
<i>Set effective Group ID.</i>
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<img src=../../GRAPHICS/man.gif>
setreuid
Seems to have different uses on Sun and RS/6000.
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<img src=../../GRAPHICS/whiteball.gif>
setuidx
RS/6000 (AIX only).
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<img src=../../GRAPHICS/whiteball.gif>
getuidx
RS/6000 (AIX only).
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<h2>Some notes</h2>

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<img src=../../GRAPHICS/computer.gif>
<a href=../EXAMPLES/setuid.c>Example program.</a>


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<address><a href="../../address.html">Martin Leslie</a> 
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